robertson



(N Model.) 4 Sheets-Sheet 1.

T. ROBERTSON.

LOZENGE MACHINE.

Patented May 9, 1882.

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(No Model.)

4 Sheets-Sheet 2. T. ROBERTSON. LOZENGB MACHINE.

PatehtedMay 9, 1882.

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(No Model.) 4 Sheets-Sheet 3.

T.-ROBERTSON.

, J LO'ZENGE. MACHINE.

v No. 257,615. Patented May 9,1882.

(N0 Modem 4 Sheets-Sheet 4.

T. ROBERTSON.

LOZENG'E MACHINE. No. 251,615. Patented May 9,1882.

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' UNITED STATES PATENT OFFICE.

TEOMAs ROBERTSON, or TORONTO, ONTARIO, CANADA.

LOZENGE- MACHIN E.

SPECIFICATION forming part of Letters Patent No. 257,615, dated May 9, 1882.

Application filed October 26, 1880. (No model.) Patented in England April 19, 1880.

ture of plain, printed, and embossed lozenges by machineryin such manner that thelozenge material enters the machine in the form of a sheet of lozenge-paste at one end and passes out at the other end of the machine as finished goods ready for drying, the several operations channels. Fig.1 is a detail view, showing the means for rotating the printing-head. Figs. 2, 3, and 4 are sections on the lines a b, c d, and e f, respectively. Fig. 4 is an enlarged detail end view of the printing-head shaft and spring locking-block. Figs. 5, 6, and 7 are details of the cutting apparatus on ancnlarged scale. Fig. 8 is a detail plan view of the lozenge-conveying apparatus. Fig. 9 is a detail view of the gearing for operating the apron and the ,lo zenger-receiving tray, and Fig. 10 is a sectional detail view of the cutting apparatus and the apron and cutter-block-carrying frame.

Some portions of the machine are substantially the same as described and claimedby me in a previous patent, No. 185,698, dated December 26, 1876, notably the lozenge-conveying mechanism'and driving-gear, and need not therefore be again set forth in detail.

The principal portion of the present invention relates to the arrangement of the apron, cutting-block,and cutting apparatus, as more clearly shown in Fig. '10 of the drawings.

A is the frame of machine, constructed preferabl y of cast-iron in the form shown, and consistingof two open sides connected by rails and bolts.

B is the driving-shaft; B, the driving-pulley; B B, the driving-gear of machine; 13,

the hand and fly wheel; and U, the machineshaft,to each end of whichare fastened the channeled cam-wheels (J C. These wheels are provided with two channels, 0 G forming cams, which, as the wheels revolve, cause rollers placed therein to rise and fall with a stroke ofdefinite extent and character, imparting motion to and governing the action of the'operating parts, to which the rollers connect.

D is the cutter-block, placed at the front end of a frame, D, which is hinged to the main frame at d. This frame is connected by the rollerD to the inner channel, 0 of the masterwheels, and has communicated to it, as the camuvheels revolve, a reciprocating up and: down motion'on the fulcrum d as a center. This frame is counterbalanced by a weight on its arm I)"*,and is provided with adjusting screws cl for the purpose of regulating the stroke to' a nicety in relation to the cuttinghead E. Thishead E is. stationary, and is held in the jaws of the brackets E on the frame A by screws 0.

F are thelozenge-cutters, fastened to the under side of the head, with the upper edge of their tubular base on a level with the face of the conveyer-table Gr. The lozenge-couveyer table and conveyer-bars are of substantially the same construction as that illustrated in m y said patent of December 26, 1876, with the ex ception that ridges G are provided for the purpose of arresting the momentum of the lozenges at the end of each stroke, in order that they may be left in accurate position.

Anotherimprovementconsists of finger-bars G which act with a drawing motion in substitution for the push-bars hitherto used. These finger-bars are attached to across-head,arc bent downwardly at their front end, and pass through the spur-stemsol' the cutters, drawing the lozenges (which are forced up after they pass through) outof the cutter upon the table within the stroke of the next succeeding conveyer-bar.

H (see Fig. 7) are the cutter-guards, which relieve the cutters from the lozenge-paste. V

The reciprocating hinged frame I) is provided with a feed-apron, I, which is worked with an intermittent motion toward the cuttoo ters or rollers from an eccentric, I, (see Fig. 9,) on the machine shaft, and rod, lever, and ratchet-wheel connection. The apron I is used both as a feeding and a cutting apron, as it is stretched over and around a roller journaled in the frame D, immediately in front of the cutter-block, interposing itself as a moving cutting-surface between the cutter-block proper and the cutters.

As will be ,clearly seen in Fig. 10 of the drawings, the apron I passes around two rollers journaled in the pivoted frame D, and it therefore reciprocates vertically with the cut ter-block D, and in close contact therewith when the frame D is operated,

J is the embossing-head, worked with a reciprocating up-and-down motion in unison with themo'vement of the lozenges from the channel O -of the master-wheel by the roller, rocking-lever, and rod connection, as shown. The embossing-block J on the head is made detachable, and is hinged so thatitmaybe turned up forinspection when desired without detaching it from its fastenings. The face of the embossing-block is recessed at regular intervals to correspond with theposition of the lozenges and the design to be produced.

Kis the printing-head, consistingot a rotary cross-bar, K, to which are attached four (more or less) printing-blocks, K These blocks are made adjustable on their supports, and are provided with compression-springs k, which act as a cushion and compress when theprinting-blocks are in contact with the lozenges. The printing-head is operated with an intermittent up-and-down motion over the conveyer-table, by means of the rods, pivoted lcver, and roller connection, to the channel 0 of the cam-wheel shown, and with an inter mittent rotary motion by means of thepivotcd hook Lon the conveyer-frame and the sprocket-wheel L. The hook L, engaging with the arm of the sprocket-wheel at each forward stroke of the conveyor-frame draws the printing-head around on the return-stroke of the convcyer-piece one-quarter of a revolution, thus changingtheprinting-block atcach stroke and presentinga new printing-face. The printin ghead is secured in position after each movement by a spring locking-block, M, (see Fig. 4 which bears on the respective faces of the block M, secured to the cross-bar kof the printing-head as the said shaft is turned, each printing-block having a corresponding face on the block M.

Nis the inking-roller, and N the ink-distributin g rollers. These rollers are supported in bearings upon a bracket, N which is in turn supported by standards N bolted to the cross-head O of the conveyer-frame. Thus the inking-roller has communicated to it a reciprocating motion to and from the printinghead, which is rotated to present the edges of the printing-blocks in succession each time the roller is brought forward. As the roller recedes, a pawl, P, pivoted on the stationary portion of the frame engages with a ratchetwheel on the end of the roller-shaft and turns the roller around one or more teeth, or a suflicient distance to present a freshly-inked surface to the printing-block on the next forward stroke.

Q is the lozenge-receiving tray working on slide-bars placed underneath the conveyer-table on the main frame, and fed forward in unison with the delivery of the lozenges at the end of the couveyer-frame. Motion is imparted to the receiving-tray from a toothed wheel, which is fastened to a shaft having a ratchet-wheel connection with a rod, 1 from the eccentric I.

It is a scrap-apron, which receives the scrap from the slide R, and carries it out of the machine, delivering it into the scrap-box B In the operation of the machine the paste is received on the feeding-apron I from suitable preparing-rollers, and its front edge is carried forward rapidly to the cutters by the operator turning the handle 2'. (See lower section of Fig. 1.) When the'machine is started the cutter-block is forced up to the cutters as a part of the hinged reciprocating frame D, and theiuterposed pasteis cut and the lozenges retained in the base of the cutters when the frame recedes. The succeeding strokes of the cutter-block crowd the lozenges upward in the base of the cutters, and as they appear above the base they are series by series removed by the downwardly-projecting ends of the fingerbars G and drawn within the reach of the con veyer-bars. As the frame D works up and down the paste is fed forward at proper intervals, so that the cutters strike clearof the perforations made on the previous stroke. The forward movement of the paste also carries the waste and deposits it upon the wastecouveyer R. The cut lozenges now being within the control of the conveyor-bars are carried to and operated upon in succession by the embossing-head and the printing-head, and are finally deposited upon the receivingtrays in rows at regular intervals, ready for drying. The several operations necessary to prepare and finish the lozenge are timed to be in unison one with the other, and the construction of the machine is such that the whole work is entirely automatic, and is performed with rapidity and accuracy.

I claim as my invention- 1. The pivoted frame D, carrying the cutterblock D and provided with rollers for carrying the apron I, in combination with the cutter-block D, apron I, stationary cutter-head E, cutters F, and means, substantially as described, for giving the pivoted frame a verti- IIO cal movement at its outer end, as and for the purpose specified.

2. In combination with the tubular cutters F and the slotted shanks thereof, the hooks G passing through said slotted shanks and connected to the reciprocating convcyer-bars, substantially as and for the purpose specified.

3. In a lozenge-machine, the conveyer-table cutter-block and intermittently-moving apron, Gr, provided with a series of ridges, G, in the cutter-head, the embossing and printing combination with the reciprocating finger-bars heads, and mechanism, substantially as de- 15 GZsnbstantially as and for the purpose speciscribed, for connecting and operating said 5 tied. a y parts, and the lozenge-conveying mechanism 4. The combination of the channeled camand receiving-trays, arranged and operating wheels, the pivoted paste-frame, with cuttersubstantially as shown and described.

block andintermittently-moving apron lnountt, ed thereon, and a stationary cutter-head, snb- THOS' ROBERTSON 1o stantially as shown and described. Witnesses:

5. The combination of the channeled cam- GEO. A. AIR-D,

wheels, the reciprocating frame carrying the WM. TURNER. 

